Karl bkek wilhelm jagdmann



Patented J une 17, l9l9.

2 SHEETS-SHEET l.

K. E. w. IAGDMANN.

h BUILDING BLOCK. AFPLICAIOII fllED SEPT. 25. HI8.

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K. E. W. JAGDMANN.

BUILDING BLOCK.

APPLlcMloN msn sm. 25. ma.

Patented June 17, 1919.

2 SHEETS-SHEET 2.

Eig. 14.

KARL ERIK WILHELM JAGDMANN, OF STOCKHOLM, SWEDEN.

BUILDING-BLOCK.

Specification of Letters Patent.

Patented June 17, 1919.

application med september 25, 191s. serial no. 255,712.

Ta all 'whom 'it may concern:

Be it known that I, KARL ERIK WILHELM 'JAGDMANN, subject of the King of Sweden,

residing at Rrstrandsgatan 58, Stockholm, Sweden, have inventedV certain new and useful Improvements in Building-Blocks, of which the following is a specification.

This invention relates to an improved form of block, adapted to be used in connection with oor and'ceiling construction, together with an improved method of securin the same together.

igure 1, in the accompanying drawings,

is a sectional end elevation;

Fig. 2 isa sectional side elevation;

Fig. 3 a plan view;

Fig. 4 a sectional end elevation of a modified form of block; and

Figs. 5 and 6 details of construction ada ted to be used in connection with the bloc illustrated in Fig. 4;

Fig. 7 is an end elevation, but showing a `modified form;

Fig. 8 is'aplan view of a number of blocks positioned together, without the use of remforced meta and Figs. 4J and 10 are details of the grooved u Iioints adapted to used "in connection with theY structure illiistrated in Fig. 8;

Fig. 11 a sectional viewtaken on the line lli-lll-ofhlig. 12"; Y

Fig. 12 isa plan view; and

Fig. 13 illustrates a form of Vblock which may be used without reinforced metal; and

l'igi'ltA illustrates stillV another method of laying the blocks;

Figs 15, 16, 17 and 18 illustrate blocks constructed of two or more pieces;

Fig. 19 is a slightly modified form of the construction illustrated in Fig. 18; and` Figs. 20, 21,'V anf'df22 illustrate details of construction to be used in connection with the* reinforced bars.

A divided by means of horizontal or vertical intermediate walls or filled up by 'a light substance.l The' blocks are 'provided with channels I2 into =which vthev reinforcing metal 3 isjinseite'd. *Said channels ymaylbe made inthe baseman/interfase side' Sara-ees ef the block, so as to form so-called cross-reinforcement. To produce a floor, a beam 4, preferably a wooden beam, is placed in parallel to one wall of the room, said wall, preferably being smoothed on a level with the ceiling, at a distance about corres ending to the length of a block. Preferably, the said beam is suspended by stirrups 5 in such manner that the upper edge is on a level with the smooth wall. Then a series of blocks is laid down, some mortar or packings being inserted between them. The joint surfaces may preferably be dipped into thin cement paste or any other binding or tightening material. Then the reinforcing metal is introduced into the channels. To retain said metal in lace, iron plates 6 or the like may be rovied, one for each joint or for some of t em, preferably those coinmon to two reinforcin metal rods. In order to receive the shearing stress said plates may be substituted by stirrups of round iron 9.

One or more reinforcing rods may be provided for each line, two of them are, however, to be preferred. The plates and, if desired, the stirrups are forced into the joints. To facilitate this operation recesses may be made in the blocks. The reinforc ing metal is tobe protected against rust b means of cement paste or in any other weV known manner. Theends ofthe rods are threaded and `provided with nuts or any other locking device, so as to be capable of being tightened, for instance by means of wedges or eccentrica The nuts having been tightened, the floor supports itself, and the beam is moved a distance corresponding to the length of a block. VIn this manner the lines are Aconstructed one after another. In order to increase the connection `of the door and facilitate the construction thereof, the sides of the'blocks are provided with roovejoints. shch groove-joints being preerably" also disposed in the joint-surfaces. The groove-joints may, if desired, be omitted altogether. The oors may also be provided with coherent plates.

The beam may be placed on the smoothed surface of the wall rand cantalivered on a level with said surface. vSuch a construction i'sjshown inlligs. 4 and 5, the bealn bef- 105 ing' provided wana centenar 1o supporte ing the blocks. The beam may be made of iron throughout having in such case the shape of an angle iron. This embodiment is shown in Fig. 6.

It is to be noted, that the beam may be omitted, if the reinforcing rods have their ends firmly secured to the side walls. This may, however, be used advantageously only in case of very small spans, because in greater spans the rods are liable to be bent and, consequently, the floor will become swayed at the middle.

The blocks may also be fixed together. Contrary to the common floors such oors may be built up in frosty weather, because the rement is already hardened, and it does not matter if the joints freeze.

Preferably, a cross-reinforcement is disposed in the middle of each floor.

The blocks may also be so molded as to have an aperture at one side only (Fig. 3) thus forming cross-beams S, `the supporting concrete beams being placed not only in the transverse but also in the longitudinal direction of the blocks.

The cavities of the blocks may be filled wit? a. sound-proof material, as for instance tur Such a method is illustrated in Fig. 7 of the accompanying drawings showing three lines of connected blocks.

The different blocks are designated by 1, the channels or apertures for the reinforcing metal by 2. According to Fig. 7 each block is connected with the preceding line by clamps 3 which, after the reinforcing metal has been tightened, may be removed.

Another method of layin out the blocks without molds or beams an gripping reinforcing metal is shown in Fig. 8. The

method consists in providing the blocks with..

groove-joints in such a manner that the blocks in the first line rest on the supporting wall or the like, the blocks in the second line on the first line, the blocks in the third line on the second line and so on. A form of the, groove-joints suitable in this case is showniin Figs. 9 and 10, being sectional views on lines .9-9 and 10--10 respectively in Fig. 8.

A further manner of performing such a,

method is shown in Figs. 11 and 12, Fig. 12 showing some lines viewed from above and Fig. 11 a section on line 11-11 in Fig. 12. blocks are joined together in such manner that each second or third block, etc., of the first line consists of two quartered blocks resting against the wall, a reinforcing rod 11 being j introduced in apcrf tures 12 made in the blocks. Then usual blocks are inserted in the interspaces between the twon quartered blocks, the usual blocks resting, on the one hand, against the wall and on the other hand againstthe reinforcing .rod 1L To this purpose the usual blocks According to this method the are provided with channels or grooves 13 in the lower side. Then another reinforcing rod is introduced in apertures 14 in the usual blocks, said rod serving in turn as support for another line of usual blocks and so on.

Such a mounting of the blocks on the reinforcing metal may be avoided, if the blocks be provided with groove-joints, as shown in Fig. 13. In this case the groove-joints are indicated by 15, and it will appear distinctly from the figure that the blocks of each subsequent line are placed on the joints of the blocks in the next lower line. In this case the reinforcing metal may be introduced, after the lines of blocks are laid out.

Fig. 14 shows still another method of laying out the blocks. In this case the blocks are preferabl wedge-shaped to a certain extent. The blibcks are introduced or forced in between the blocks previously laid out or reinforced.

This method is to be used in ease of the reinforcing metal being provided with rivet heads, hooks or the like and tightened by widening the lines of blocks.

In the practical use the blocks hereinbefore described have not proved quite satisfactory. Thus in case of great spans or heavy loads in which case the blocks are very great and heavy it has-proved to be of advantage to use blocks open at the bottom and provided with a false bottom preferably made of lighter material or to divide each block in two vormore parts. The false bottoni may also be omitted in which case 100 the beams are visible from beneath or concealed by lastering or the like.

It is to be noted that the upper portion of the blocks ought, in general, to be of greater size than the lower portion, for instance 105 twice as great, because the upper portion has; to receive the greatest stresses.

Some embodiments of blocks produced according to the invention are shown in Figs. 15 to 22 inclusive.

In Fig. 15 the block is U-shaped, a false bottom 16 of lighter or cheaper material bein provided.

l(Fig. 16 shows a modified form of the block in Fig. 15, each block consisting of two 115 halves.V

In Figs. 17, 18 and 19 the blocks are divided into T-shaped portions or in any other manner.

The blocks shown in Figs. 20, 21 and 22 are 12o characterized by channels 18 leading to the apertures 2 for the reinforcing metal and serving for the filling in of the cement aste or the like. Said channels may be made in the material or in form of grooves'in the 125 joint surface. y

It is to be noted that, if the apertures are provided with connecting channels, one-vertical channel only is needed for each block.

Obviously, the grooves may bereplacedby 130 apertures 2 if conditions permit that the reinforoed metal may be threaded through such apertures.

Claim:

5 A 'loor construction including a number of blocks provided with male and female ends so that such blocks may nterengage, said blocks being provided with a, groove bes 10W earch of their interengaging portions and 10 above their lower edges, reinforcing rods passing through the ooves of a number of blocks and plates enclrclin the rods and being ositioned in a recess ormed in each of the looks.

In testimony whereof I aix my signature 15 in preesnce of two Witnesses.

KARL ERIK WILHELM JAGDMANN. Witnesses:

FRITZ E. HALLIN, GRETA PREN.

Sopies of this patent may be obtained for ve cents each, by addressing the Commissioner o! Patenti, Washington, D. C. 

